TABLE 1

Demographic, clinical, sleep and physical activity of daily life characteristics of the patients

Variablesn=55
Male sex n (%)28 (51)
Age years67±8
FEV1 %pred55 (38–62)
GOLD 1/2/3/4 n (%)1 (2) / 34 (62) /11 (20) / 9 (16)
mMRC 0/1/2/3/4 n (%)6 (11) / 11 (20) / 9 (16) / 23 (42) / 6 (11)
HADS anxiety score5 (1.5–7)
HADS depression score3 (1–6)
BMI kg·m−226±5
FFMI kg·m−219.8±2.2
FMI kg·m−26.2±3.8
6MWT m473±75
Hypertension n (%)28 (51)
Diabetes n (%)12 (22)
Heart disease n (%)9 (16)
Sleep characteristics
 TIB h8.1±1.3
 TST h5.5±1.3
 Sleep efficiency %69±13
 Sleeping bouts n6.9 (5.9–8.2)
 Sleeping bouts duration min50 (39–67)
 WASO min138±63
PADL characteristics
 Awake time h14.8±1.8
 Time spent in SB min (%Tawake)537±151 (61±18)
 Time spent in LIPA min (%Tawake)291±143 (32±14)
 Time spent in MVPA min (%Tawake)37 (10–94) (5 (1–11))
 Steps·day−1 n7118±4081
 Total energy expenditure·day−1 kcal1540 (1253–1725)
 Average MET·day−11.6±0.3

Data are presented as mean±sd or median (interquartile range) according to the normality in data distribution, unless otherwise indicated. FEV1: forced expiratory volume in 1 s; GOLD: Global Initiative for Chronic Obstructive Lung Disease; mMRC: modified Medical Research Council; HADS: Hospital Anxiety and Depression Scale; BMI: body mass index; FFMI: fat-free mass index; FMI: fat mass index; 6MWT: 6-min walking test; TIB: total time in bed; TST: total sleep time; WASO: wake-after-sleep onset; PADL: physical activity in daily life; SB: sedentary behaviour; LIPA: light intensity physical activity; MVPA: moderate-to-vigorous physical activity; Tawake: time spent awake; MET: metabolic equivalents of task.